320D e90 white smoke on startup, misfire type sound

leewagner

New member
Hi BMW Fans

so I have had my car for just over a year, and since the last service I have sent it to BMW, after that the car has a sound as if it is misfiring, although all the power is still there, the sound is louder when cold, plus on start a small white puff comes out but is not continuous.

the misfire sound is as if the timing is slightly off but the rev counter does not bounce at all.

again the car has all its power etc.

if anyone might know or suggest what this could be I would truly appreciate it. hope it is something simple such as a filter. and not the injectors or pumps.

Thank you in advance for your responses.

Regards
Lee
 
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